Model Context Protocol (MCP) SDK

A standardized open-source SDK for connecting AI models to local data sources and remote tools with a single protocol.

The Model Context Protocol (MCP) SDK replaces the fragmented mess of custom integrations with a unified standard for AI context. By implementing the TypeScript or Python SDKs, developers enable LLMs to securely query databases (like PostgreSQL), browse local filesystems, or trigger API actions through a consistent client-server architecture. This protocol eliminates the need to rewrite tool-calling logic for every new model, allowing agents to swap between providers like Anthropic, OpenAI, or local instances while maintaining seamless access to the same data ecosystem.

https://github.com/modelcontextprotocol